On October 4, 2024, the Environmental Protection Agency (EPA) finalized the Lead and Copper Rule Improvements (LCRI) to strengthen regulations set forth in the 2021 Lead and Copper Rule Revisions (LCRR). The LCRI addresses deficiencies found during a comprehensive review of the LCRR through new requirements in five focus areas: 1. Achieving lead pipe replacement within 10 years 2. Locating legacy lead pipes 3. Improving tap sampling 4. Lowering the lead action level from 15 ppb to 10 ppb 5. Strengthening protections to reduce exposure The start of LCRI compliance begins on November 1, 2027 New requirements include submitting a Baseline Inventory, validating non-lead service lines, identifying all unknown service lines, and updating tap sampling methods. Additionally, the combined effect of a lower lead action level and more stringent sampling methodology will result in an increased number of water systems with lead action level exceedances. Requirements outlined in the LCRR such as replacement plans for systems with lead, galvanized requiring replacement (GRR), and/or unknown lines and mandatory school and childcare sampling are be required. With the additional requirements and revisions to existing expectations, utilities can expect to face new challenges. Although the start of compliance is 15 months away, water systems should take steps now to set themselves up for success when the LCRI takes effect on November 1, 2027. This presentation will outline those steps through case studies and data on the following topics: • Why and how to achieve a fully known Baseline Inventory through state-approved methods • Prepping for new tap sampling protocols and its effects • Leveraging existing school and childcare sampling programs in Kentucky and Tennessee Attendees will take away a comprehensive understanding of the LCRI and actionable steps they can take with their water system to best prepare for the requirements.